I know how you feel. Your H sounds very much like the x. I am also resentful at how his selfishness has caused kid and I so much pain. I hate that even though I was willing to work on us after his aggression and affair, he still decided that we were not worth his while.
It is unfair and unjust. But we have no control over the spouses. We have control over us.
Jjb, while things are not set in stone yet, please do your best to seek out the best terms for you and your children. Since your H is so self-centred, I would say go for the jugular.
If you're able to secure the best terms for you and your children, you'll feel so much better. And in control.
Is there anything you can do to make yourself feel more in control?
You can call me Dory/ Grl.
As a wise fish once sang,"Just keep swimming!"
It's no use to go back to yesterday because I was a different person then.